Insulator rack



June 23, 1931- c. l.. PEIRCE, JR

` INSULATOR RACK Filed Jan. 26. 1929 Patented June 23, 1931 UNITED STATES PATENT OFFICE CHARLES L. PEIBCE, JR., OF PITTSBURGH, PENNSYLVNIA, ASSIGNOR TO HUBBARD & 1 COMPANY, A. CORPORATION 0F PENNSYLVANIA.

INSULATOR RACK Application led January 26, 1929. Serial No. 335,293.

This invention relates to insulator racks and more particularly to auxiliary racks.

An object of this invention is to provide an insulator rack that shall be simple in structure and inexpensive to manufacture.

Another object of this invention is to provide an insulator rack having a novel means for connecting the insulator pin supports to the base of the rack.

Other objects lie in the novel construction and combination ofgparts as will be made apparent throughout the further description of the device illustrated in the accompanying drawings and set forth in the appended claims.

In the drawings: u

Figure 1 is a perspective view of an 1nsulator rack embodying the invention,

Fig. 2 is a perspective fragmental view of an insulator pin support embodying the invention,

Fig. 3 is a fragmental bottom plan view of the rack base having the insulator pin support unattached,

Fig. 4 is a similar view to Fig. 3 showing the insulator pin support attached, and

Fi 5 is a sectional View taken along the line -V of Fig. 4.

The device illustrated is an insulator rack embodying the invention comprising a base 11, insulator pin supports 12 and an insulator in 13 for supportin insulators 14.

T e novel feature of t e invention is the construction of the base 11 and insulator pin supports 12 in such a manner as to form means 15 for fastening the insulator pin supports 12 to the base l1.

The main portion of the base 11 is of channel shape having its sides terminating in outwardly extending anges 16. The base illustrated is provided with a cylindrical opening 17 adjacent each of its ends for connecting it toa wall,- roof or the like.

The ase, as well as the insulator pin sup- -p.orts,1s preferablyformed from a sheet of pressed steel. The insulator base is further provided with a plurality of spaced rectangular openings 18,*having tongues 19 at each of its ends and oppositely disposed recesses 2l in its sides. The recesses 21 provide portions 22 on the base member, the purpose of which will hereinafter be described.

The pin supports 12 are pressed from sheet metal and bent in the center forming a tong or forcep having two legs 23. The sides of the legs 23 terminate in inwardly turned flanges 24. The flanges 24 terminate short of the ends of the legs 23 and form shoulders 25 for engaging and cooperating with the tongues 19 disposed on the ends of the openings 18 in the base 11, as will be hereinafter described.

The ends of the legs 23 of the pin supports 12 terminate in the form of substantially a T-shape, the cross bar of said T forming outwardly extending projections 26 which are disposed in' a plane at substantially right angles to the plane of the inwardly turned flanges 24. The projections 26 form shoulders 27 for engaging and cooperating with the rear face of the portion 22 preventing outward movement of the pin supports l2.

The top of each of the insulator pin supports 12 is so formed as to provide a cylindrical opening 28 for receiving the insulator pin 13.

The means 15 for fastening the pin supports 12 to the base 11 comprises the opening 18, its tongues 19, recesses 21, and the portions 22 on the base member and the shoulders 25, projections 26 and shoulders 27 on the ends of the in supports 12.

In. the assemb y of the present insulator rack it isonly necessary to press the ends of -the legs 23 of the insulator pin supports together and position them in the opening 18.

On releasing the pressure from the legs 23, the legs spread apart and the shoulders 27 of the projections 26 will engage the rear face of the corresponding portions 22 of the base member 11, and the legs of the T- shaped projection 26 will be received in the recesses 21. The tongues 19 are then pressed inwardly to close the opening 18. The sides of the tongues 19 will enga e the inner surface of the projections 26 o the ends of the legs 23 and will hold the projecting ends of the `legs 23 in position on the base member. Since the depth of the recesses 21 is substan- :asians tion of the legs adjacent the projections 26,l

the shoulders 27 will be kept 1n engagement with the rear face o f the portions and' prevent separation of the insulator pin sup` y I ports 12 from the base 11 in an outward top-surfaces of the inwardly pressed tongues A 19 prevent separationof the pin supports 12 lin an inwardly direction from the base 11.-. It can be seen from the above that themeans 15 rigidly fastens the pin supports`12 vto the base 1l` andV s' 'ce the means 15 is provided simultaneous y with the stamping e or forming of the respective base and in supports, the present rack is rendered ess expensive to manufacture. The necessity of welding and other operations heretofore emplo edare eliminated. f

'lhe present device is ractical in operation, inexpensive to manu acture and quicklyassembled. All of the operations in the. manufacture of the present device are machine o erations whicligreatly increase the production thereof.

'While I have illustrated `and described but one embodiment of this invention, it will be apparent to those skilled -in theart that certain changes, modifications, substitutions, additions and omissionsY may be made in the device without departing from the spirit and scope of the appended claims.

lVhat I claim as new and desire to secure by Letters Patent is:

l 1. An insulator rack comprising a base member having a plurality of spaced open# in s therein insulator in su orts havin w g i P EP g dual legs terminating 1n T-s aped projections adapted to be received in said openings, said .base member having means on the side of said openings for receiving said projecthe other vings, a T-'sha ed projection on the and of Aeach of said egs, one `portion of kwhich is adapted tobe received 1n said recesses and- (portion of `which is adapted-to enga e an c ,cees to prevent outward movementof said in su rts, tongue-shaped projections at ilzhe emggeachof said openings adapted to be bent inwardly for closing said openings when'the T-shaped rojections are in lace `in said recesses andp for securely retaining 'said pin supports on said base member, the ,flanges on sald legs being adapted to engage the. ront face of said tongues to prevent in- Wardl movement of said pin supports.

l' 4; An `insulator rack comprising a base member having a plurality of spaced rectangular openin therein, and recesses on the sides of sai openings, tong-shaped insulator .pin supports, T-shaped proJections on the ends of said pin supports adapted to be received in said recesses and to cooperate and engage with said base memberl lon each ,side of said recesses, and means for securing ooperatewith the rear face ofl said`V asev member "on each side ofk said redirection. The shoulders 25 Pof theilanges 24 of. the pin supportspressing againstthe said T-shaped projections in their respectivey positions.

5.'An'insulator pin support of general tong-like appearance, having inwar l ex.

tending flanges on the leg portions o said pin supports, T-shaped-projections on the `ends of said le at right angles to said flanges and `a pm apertureformed at vthe, e

.fulcrum'of said legs.

e In testimony`whereof, lI have hereunto subscribed my name this 24th day of J anuary, 1929.

CHARLES L. PEIRCE, JR.

tions, and-means at the ends of saidopemngs for retaining said projections in theylrstmentloned means 1n said base member.

2. An insulator rack comprising abasey 3. An insulator rack com rising a base member having a plurality o spaced rectangular openings therein, insulator pin supports having flangedlegs ada ted to be ren ceived in said openings an means for securely fastening the legs of said pin supports to said base member, said means including recesses onk the sides of said open- G32 Uv 

